class Settings:
    def __init__(self):
        # 游戏属性
        self.name = "Star Wars"
        # 界面设置
        self.screen_width = 800
        self.screen_height = 600
        self.bg_color = (230, 230, 230)
        # 飞船属性
        self.ship_speed_factor = 20
        # 子弹设置
        self.bullet_speed_factor = 20
        self.bullet_width = 3
        self.bullet_height = 9
        self.bullet_color = (255, 255, 255)
        # aline
        # 左右速度
        self.alien_LR_speed_factor = 5
        # 上下速度
        self.alien_UD_speed_factor = 3
